1. READMEussenators.txt						This file
2. modelOnlySenatorsCampaignTrail.R			Source code file to reproduce analysis
											 in "most liberal senate" section
3. national_journal_2003_votes_bush.txt		Votes and legislators, from National Journal
6. OnlyRelevantSenatorsIRT.RData			Posterior distribution IRT model
7. OnlyRelevantSenatorsNEG.RData			Posterior distribution, abstentions as NAYs
4. OnlyRelevantSenators.RData				Competing principals, informative priors
5. OnlyRelevantSenatorsFLATPRIORS.RData		Competing principals, flat priors
